Diatom and associated data for a field experiment which translocated control and contaminated sediments between locations within the Windmill Islands, Antarctica
Entry ID: Diatoms_sre2

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Summary
Abstract: Full title:

Diatom and associated data for a manipulative field experiment which translocated control and contaminated sediments between locations within the Windmill Islands, Antarctica.

A manipulative field experiment was performed to assess the effects of heavy metals and petroleum hydrocarbons on benthic diatom communities in the Windmill Islands. Three treatments were used (control, metal contaminated, and petroleum hydrocarbon contaminated), with replicates of each treatment deployed at three locations (Sparkes Bay, Brown Bay and O'Brien Bay). The datasets associated with this experiment include the concentrations of metals within the sediments as well as diatom data (raw counts, and the relative abundance of benthic species).

This work was completed as part of ASAC project 1130 (ASAC_1130) and project 2201 (ASAC_2201).

Public summary from project 1130:

Algal mats grow on sea floor in most shallow marine environments. They are thought to contribute more than half of the total primary production in many of these areas, making them a critical food source for invertebrates and some fish. We will establish how important they are in Antarctic marine environments and determine the effects of local sewerage and tip-site pollution. We will also investigate the impact on the algal mats of the additional UV radiation which results from the ozone hole.

Public summary from project 2201:

As a signatory to the Protocol on Environmental Protection to the Antarctic Treaty Australia is committed to comprehensive protection of the Antarctic environment. This protocol requires that activities in the Antarctic shall be planned and conducted on the basis of information sufficient to make prior assessments of, and informed judgements about, their possible impacts on the Antarctic environment. Most of our activities in the Antarctic occur along the narrow fringe of ice-free rock adjacent to the sea and many of our activities have the potential to cause environmental harm to marine life. The Antarctic seas support the most complex and biologically diverse plant and animal communities of the region. However, very little is known about them and there is certainly not sufficient known to make informed judgements about possible environmental impacts.

The animals and plants of the sea-bed are widely accepted as being the most appropriate part of the marine ecosystem for indicating disturbance caused by local sources. Attached sea-bed organisms have a fixed spatial relationship with a given place so they must either endure conditions or die. Once lost from a site recolonisation takes some time, as a consequence the structure of sea-bed communities reflect not only present conditions but they can also integrate conditions in the past. In contrast, fish and planktonic organisms can move freely so their site of capture does not indicate a long residence time at that location. Because sea-bed communities are particularly diverse they contain species with widely differing life strategies, as a result different species can have very different levels of tolerance to stress; this leads to a range of subtle changes in community structure as a response to gradually increasing disturbance, rather than an all or nothing response.

This project will examine sea-bed communities near our stations to determine how seriously they are affected by human activities. This information will be used to set priorities for improving operational procedures to reduce the risk of further environmental damage.

The fields in this dataset are:

Species
Arsenic
Cadmium
Copper
Lead
Silver
Zinc
Concentration
Location
Treatment
Abundance
Benthic
Site

Related URL
Link: GET DATA
Description: Download point for the data


Link: VIEW PROJECT HOME PAGE
Description: Public information for ASAC project 1130


Link: VIEW PROJECT HOME PAGE
Description: Public information for ASAC project 2201


Link: VIEW RELATED INFORMATION
Description: Citation reference for this metadata record and dataset


Parent DIF
This data set description is a member of a collection. The collection is described in
ASAC_2201


Geographic Coverage
 N: -66.0 S: -66.5  E: 110.5  W: 110.0

Temporal Coverage
Start Date: 1997-09-01
Stop Date: 1999-03-31


Location Keywords
CONTINENT > ANTARCTICA > Windmill Islands
GEOGRAPHIC REGION > POLAR


Science Keywords
BIOLOGICAL CLASSIFICATION >PROTISTS >DIATOMS    [Definition]
BIOLOGICAL CLASSIFICATION >PLANTS >MICROALGAE >DIATOMS
BIOSPHERE >AQUATIC ECOSYSTEMS >BENTHIC HABITAT    [Definition]
BIOSPHERE >AQUATIC ECOSYSTEMS >COASTAL HABITAT    [Definition]
BIOSPHERE >ECOLOGICAL DYNAMICS >COMMUNITY DYNAMICS >COMMUNITY STRUCTURE    [Definition]


ISO Topic Category
BIOTA
OCEANS


Platform
FIELD SURVEYS    [Information]


Quality
Dates given in temporal coverage are approximate only. The year is accurate.


Access Constraints
These data are publicly available for download from the URL given below.


Use Constraints
This data set conforms to the PICCCBY Attribution License
(http://creativecommons.org/licenses/by/3.0/).

Please follow instructions listed in the citation reference provided at http://data.aad.gov.au/aadc/metadata/citation.cfm?entry_id=Diatoms_... when using these data.

Please also contact the investigator when using these data.


Keywords
ABUNDANCE
ANTARCTICA
ARSENIC
BENTHIC
BENTHIC DIATOM COMMUNITIES
CADMIUM
CONCENTRATION
COPPER
FIELD EXPERIMENT
HEAVY METALS
LEAD
LOCATION
MARINE BAYS
SILVER
SITE
SPECIES
TREATMENT
ZINC


Data Set Progress
COMPLETE


Data Center
Australian Antarctic Data Centre, Australia    [Information]
Data Center URL: http://data.aad.gov.au

Data Center Personnel
Name: DATA OFFICER AADC
Phone: +61 3 6232 3244
Fax: +61 3 6232 3351
Email: metadata at aad.gov.au
Contact Address:
Australian Antarctic Division
203 Channel Highway
City: Kingston
Province or State: Tasmania
Postal Code: 7050
Country: Australia



Distribution
Distribution_Media: HTTP
Distribution_Size: 31 kb
Distribution_Format: excel
Fees: free


Personnel
MARTIN J. RIDDLE
Role: INVESTIGATOR
Phone: +61 3 6232 3573
Fax: +61 3 6232 3351
Email: martin.riddle at aad.gov.au
Contact Address:
Australian Antarctic Division
203 Channel Highway
City: Kingston
Province or State: Tasmania
Postal Code: 7050
Country: Australia


JONATHAN SEAN STARK
Role: INVESTIGATOR
Phone: +61 3 6232 3589
Fax: +61 3 6232 3158
Email: jonny.stark at aad.gov.au
Contact Address:
Australian Antarctic Division
203 Channel Highway
City: Kingston
Province or State: Tasmania
Postal Code: 7050
Country: Australia


LAURA KAY CUNNINGHAM
Role: INVESTIGATOR
Role: TECHNICAL CONTACT
Role: DIF AUTHOR
Email: laura.cunningham at aad.gov.au
Contact Address:
Australian Antarctic Division
203 Channel Highway
City: Kingston
Province or State: Tasmania
Postal Code: 7050
Country: Australia


Publications/References
L. Cunningham. (2003), Benthic diatom communities of coastal marine environments in the Windmill Islands, Antarctica, PhD Thesis, University of Tasmania.

Creation and Review Dates
DIF Creation Date: 2003-06-13
Last DIF Revision Date: 2014-01-10

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